Yuu Isshiki, a first-year college student, has a charming girlfriend, Karen Mitsumoto. However, one day Yuu discovers that Karen has an adventure with her Senpai,... more>> Kamokura Tetsuya. Angry, sad and desperate, he calls Kamokura's girlfriend, Sakurajima Touko, from which she is said that she is the most beautiful girl in the institute. "Touko-senpai. Please, have an adventure with me. " But Touko said: "I can not let me fool me. I have to push my opponent at the bottom of despair. " Her's plan is then to continue falling in love and, finally, to break it as the night with another man. <<less